“…Polymeric membranes have attracted much attention because of their unique advantages in the fields of biotechnology, food industry, water treatment and fuel cells [ 1 , 2 , 3 , 4 , 5 ]. There are various kinds of polymer membranes available, i.e., pure polymer, blend, mixed matrix, polyelectrolyte, composite, organic-inorganic hybrid, etc., and which are nonionic, ionic, or complex in nature, to meet day-to-day challenges [ 6 , 7 , 8 ]. Recently, castor oil-based polyurethane and polyaniline membranes have been used for the application of separation technology [ 8 ].…”